The National Intelligence and Security Agency (NISA) has blocked 20 groups on WhatsApp that seem to be under the control of Al-Shabaab.
A report from NISA shows that Al-Shabaab has been using the groups to collect extortions and carry out intimidations.
NISA announced the shutdown of the groups on Tuesday.
According to NISA, the WhatsApp groups had the details of thousands of people and more than 2,500 phone numbers.